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Method for preparing flexible display module based on PDLC

A flexible display and flexible substrate technology, applied in the direction of nonlinear optics, optics, instruments, etc., can solve the problems of lack and limitation of the development of printed flexible displays, and achieve the effects of improving the pass rate, reducing production costs, and ensuring processing accuracy

Inactive Publication Date: 2015-07-22
BEIJING SAN WU JIU INVESTMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to the realization of PDLC-based printed flexible displays lies in the preparation of flexible display modules. However, the current research reports on the preparation process of flexible display modules related to this type of display are very scarce, which limits the development of PDLC-based printed flexible displays.

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  • Method for preparing flexible display module based on PDLC

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the drawings and specific embodiments, and the following embodiments do not constitute a limitation to the present invention.

[0022] In this embodiment, refer to figure 1 , A method for preparing a flexible display module based on PDLC, including the following steps:

[0023] (1) Choose a silicon wafer or glass wafer with high flatness and single-sided polishing as the hard substrate 1. The surface flatness of the hard substrate 1 is less than 5μm, and the hard substrate is cleaned with deionized water. Dry, coat a layer of adhesion layer 2 on the surface of the hard substrate 1. First, prepare the hard substrate 1 and the adhesion layer 2. The hard substrate 1 is a single-polished silicon wafer. The hard substrate is ultrasonically cleaned with acetone, ethanol and deionized water, and then dried in a vacuum oven at 180°C. After drying for 3 hours, an adhesion layer 2 of...

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Abstract

The invention provides a method for preparing a flexible display module based on PDLC (Polymer Dispersed Liquid Crystal). The method comprises the following steps: selecting a single-face polished silicon wafer or glass sheet with high evenness as a rigid chip, and adopting an adhesion layer to evenly fix a flexible substrate with a transparent conducting layer on the rigid chip; etching the transparent conducting layer into an electrode array composed of mutually-parallel transparent conducting grids with a photoetching and etching process, and then adopting a coating process to coat a layer of PDLC membrane on one surface with the electrode array of the flexible substrate; and utilizing a coating machine to evenly and compactly cover a transparent flexible chip on the surface of the PDLC membrane and photocure the PDLC membrane, and then stripping the rigid chip from a device; and adopting a printing process to airbrushing a CMKY (cyan, magenta, yellow black) ink layer on the back of the flexible substrate. According to the preparation method, the processing precision of products is ensured, and the processing craft is compatible with the processing craft of micro-electronics, so that the production cost of the product is reduced.

Description

Technical field [0001] The invention relates to a method for preparing a flexible display module, in particular to a method for preparing a flexible display module based on PDLC. Background technique [0002] Polymer dispersed liquid crystal (PDLC) is an emerging electro-optical thin film material. It disperses small molecule liquid crystal (LC) in a transparent polymer matrix to form micron-sized or nano-sized liquid crystal droplets, and the polymer provides a stable network structure for the liquid crystal droplets. Because liquid crystal molecules have strong optical anisotropy and dielectric anisotropy, this material has significant electro-optical properties. Compared with traditional twisted or super twisted liquid crystal devices, the advantage of polymer dispersed liquid crystal is that it does not need polarizer and alignment layer, and the preparation process is simple. Therefore, it is suitable for the preparation of flexible large-area display screens, electro-opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1334
Inventor 钱俊刘锋
Owner BEIJING SAN WU JIU INVESTMENT
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